I bought this All-in-one from CBC, It came with extra black HP 301 cartridge apart from the Tri color and black ink that is standard with the printer.
Its not mentioned in the website, its something HP is doing by themselves. Either way its a great deal.
Before you go on about how expensive the cartridges are, hear me out...
Epson = if you want colour, if not total ****
I had an Epson printer before, although compatible cartridges are easy to find for them, I noticed a big drawback... You need all four cartridges (Black, and three colours ones) for the printer to work. As I mostly printed in Black and rarely used colour, even when I had full black and emptied one of the colour cartridges, I had to buy that particular colour else I will not be able to print .
And since I use colour rarely, while I have been using my black ink my colour cartridges have been drying up... I ended up spending way more money, and mostly getting annoyed with the whole system.
HP is great in that sense, it lets you use Black even if you don't have colour and this particular model is instant-on and quite speedy.
Almost forgot... you need to get the printer cable, thats not included. I got one from ebay for 0.99gbp